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UK Postcode Lookup
x402
UK Postcode Lookup is a paid API for AI agents from pennydatahq.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).
Returns geographic and administrative data (lat/lon, ward, district, constituency, region) for a Great Britain postcode.
Price / call$0.002
Success—
StatusUnknown
How this service works
Location and areas for a Great Britain postcode: latitude and longitude, ward, district, constituency and region, as JSON.
Output
A JSON object containing the normalised postcode, latitude, longitude, ward name, district name, Westminster parliamentary constituency (2024 boundaries), English region (null for Scotland and Wales), and country.
Example use cases
Geocoding addresses for mapping
“I have a list of UK postcodes and I need the latitude and longitude for each — can you start with EC2A 4NE?”
Identifying constituency for voter outreach
“Which Westminster parliamentary constituency does the postcode LS1 4DY fall under? I need the 2024 boundary.”
Enriching property listings with admin data
“For the postcode OX1 3BG, can you tell me the ward, district, and region it belongs to so I can tag this property listing correctly?”
Technical details
Endpoint
GEThttps://pennydatahq.com/api/postcode/:postcode?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need structured geographic and administrative data for a Great Britain postcode in a single low-cost call, especially when you need both coordinates and administrative boundaries (ward, district, constituency, region) together. Prefer this over a general geocoding API when UK administrative context is required alongside lat/lon. Note: Northern Ireland (BT postcodes) is not supported.
Side effects
- Northern Ireland (BT) postcodes are not supported and will return null or an error
- Invalid or non-existent postcode returns an error or empty result
- Malformed postcode string may fail validation
- Region field is null for Scottish and Welsh postcodes (English regions only)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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